If you notice the stove burning fiercer than usual, or tarring occurs around the glass panels, this is a good indication that the seal is failing. As an additional test, place a piece of paper between the door and the body of the stove and close the door onto it. If your seal is intact, the paper should be very difficult to remove without opening the door and if not, you may need to replace your fire rope.

To find out which size of stove rope you require, simply measure the groove into which the existing fire rope fits.